Home / 1,130,437.28-1,560,003.08-621,172.46

Finding the Fourth Proportional to 1,130,437.28, 1,560,003.08 and 621,172.46

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Solution

The fourth proportional to 1,130,437.28, 1,560,003.08 and 621,172.46 is: 857,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,437.28 : 1,560,003.08 = 621,172.46 : x
  2. Step 2: Convert to fraction form
    1,130,437.28/1,560,003.08 = 621,172.46/x
  3. Step 3: Cross multiply
    1,130,437.28x = 1,560,003.08 × 621,172.46
  4. Step 4: Simplify right side
    1,130,437.28x = 969,030,950,811.18
  5. Step 5: Solve for x
    x = 969,030,950,811.18/1,130,437.28
  6. Step 6: Final answer
    x = 857,217.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.